Wip/carlosg/ttl parser improvements
Some improvements to the TTL parser
- Fix handling of STRING_LITERAL_LONG1 and STRING_LITERAL_LONG2
- Add support for LANGTAG
- Forward langtag through to the database, at least during LOAD. Langtags in ontology files are however still ignored.
Fixes: #260 (closed)
Edited by Carlos Garnacho